Do you mean that a creator of such a solution would "sabotage" the existence of it... ? Because none of your reasoning could apply unless he does....

-- hide signature --

Theodoros www.fotometria.gr www.fotometriawedding.gr

Why would it be sabotage?

Newer, more capable sensors require newer, more capable electronics to handle their output. You wouldn't be able to upgrade sensors in this hypothetical system unless you upgrade large portions of other electronics, too.

Unless you keep designing new sensors only for this system, which would make them very expensive (low production numbers relative to unit production cost), but then eventually, a few years down the road, the system would bottleneck - new, higher resolution sensors, but taking ages to process and write the files, because the electronics can't keep up...

That's no sabotage, that's an inherent trait of this whole concept. You'd have to replace more than just the sensor. It would be expensive, and it would get very similar to a digital back.